Stuart Mchattie
Level 1 (25 points)

Q: iPhone 4S dropping network and data at random

Hi,

 

I've been using an iPhone 4 on a Vodafone contract for the past 16 month and just bought an iPhone 4S direct from Apple. It arrived on Friday morning and I got it set up correctly as far as I can tell.

 

When I first turn it on, it works lovely and exactly as I would expect, able to make calls, send texts and access the internet via the cellular network. However, at what appears to be random, the network will disappear (no bars of signal) stopping me making calls and texts, but still allowing me to access the internet.  Sometimes, the Internet goes, but I can still make calls and texts.  Other times, everything is gone and I get "No Signal" where it normally says Vodafone UK.

 

So when trying to fix this problem after it's noticed, I try putting it into Airplane mode and back out.  The phone scans for a network and goes back to the same state as before I tried this fix. I have tried resetting network settings, but this doesn't change anything. The only thing that actually fixes it temporarily is turning the phone right off and back on again.

 

At this stage I assume this is a bug with the software, but I wondered if anyone else is experiencing anything like this? If no one is, I will take it up with Apple, but I don't really want to do that as I love the new phone so much!!

 

Cheers, Stuart

iMac (late 2009), Mac OS X (10.6.3), 27" i7 Quad-Core, 4GB RAM, 1TB HDD

Posted on Oct 16, 2011 2:53 AM

by L2C2002,Solvedanswer
L2C2002 L2C2002
Level 1 (10 points)
A:

Same issue here in Germany with T-Mobile.

The only way to overcome this is to disable the SIM PIN.

Not a real solution but that solves the issues for now.

Cheers

Posted on Oct 16, 2011 4:02 AM

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Stuart Mchattie

Q: iPhone 4S dropping network and data at random

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  • by Francisco Robles,

    Francisco Robles Francisco Robles Jan 1, 2012 2:43 PM in response to 8Honza
    Level 2 (185 points)
    Jan 1, 2012 2:43 PM in response to 8Honza

    In deed

  • by Francisco Robles,

    Francisco Robles Francisco Robles Jan 1, 2012 2:54 PM in response to unicohijo86
    Level 2 (185 points)
    Jan 1, 2012 2:54 PM in response to unicohijo86

    Hi unicohijo,

     

    My phone was with the 5.0 version in late October. In mid November I did an update over the air with the 5.0.1 9A405 and the problem started to appear (not so frequently as now). By the beginning of December I did an update to 5.0.1 9A406 with no good results and these days the problem get it worst, not even an hour connected to the carrier.

     

    Greetings

  • by Amro_Dubai,

    Amro_Dubai Amro_Dubai Jan 1, 2012 5:04 PM in response to Stuart Mchattie
    Level 1 (0 points)
    Jan 1, 2012 5:04 PM in response to Stuart Mchattie

    hi everybody.

     

    i have iphone 4s and i have the same problems with the network but little bit different, that i rarely see full 3G signal bars !! i dont know if this normal in iphone 4s or i have some problem !! i see on my other blackberry phone full bars and my iphone 3 bars only !! at the same place !!

     

    please , i would be happy if anybody give me an answer

     

    thanks

  • by cooldash87,

    cooldash87 cooldash87 Jan 1, 2012 8:19 PM in response to Stuart Mchattie
    Level 1 (10 points)
    Jan 1, 2012 8:19 PM in response to Stuart Mchattie

    For me the problem arises whenever i try to send a text or make a call. Most of the times my phone shows full bars but when i try to text someone or call, the network bars drop - switches to searching - no service - bars come back ! Now when i try resending the text or making a call it goes thru ! the phone works fine approx for 5 mins post that the cycle repeats !

  • by Francisco Robles,

    Francisco Robles Francisco Robles Jan 1, 2012 8:49 PM in response to cooldash87
    Level 2 (185 points)
    Jan 1, 2012 8:49 PM in response to cooldash87

    I had notice that too, but I think those full bars you see are fake (the phone stuck in the last signal state). Have you ever tried to dial your iPhone number to see if is really working? I had and it sends me to the voicemail.

  • by cooldash87,

    cooldash87 cooldash87 Jan 1, 2012 10:28 PM in response to Francisco Robles
    Level 1 (10 points)
    Jan 1, 2012 10:28 PM in response to Francisco Robles

    Hey Francisco,

     

    I tried calling my own number, result the same - Call Failed - Network Drop - Searching - No Service - Full network bars !

     

     

  • by abdulhameed Mneimneh,

    abdulhameed Mneimneh abdulhameed Mneimneh Jan 2, 2012 12:43 AM in response to cooldash87
    Level 1 (0 points)
    Jan 2, 2012 12:43 AM in response to cooldash87

    DEAR APPLE:

    THE MODEL MC918LL COMING FROM USA CAN WORK PROPERLY...

    I DONT KNOW WHAT MAKES THE DIFFERENCE OF MODEL MD234C...

    I SOLD MY OLD PHONE 4S AND LOST 300$ TO OBTAIN A NEW ONE MC918LL

     

    WHAT COULD BE THE DIFFERENCE BETWEEN THEM? PLEASE TELL THE PEOPLE ALL OVER THE WORLD...

     

    ITS WITH 9A406 5.0.1

     

    IF ANYONE WANTS IPHONE 4S , BUY THE MC918LL MODEL...IT WORKS IN LEBANON

  • by tanfromha noi,

    tanfromha noi tanfromha noi Jan 2, 2012 12:55 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Jan 2, 2012 12:55 AM in response to Stuart Mchattie

    I don't know if that is the software or hardware problem. But in ios 5 my 4s works well. In 5.0.1 it didn't work with any sim except the one of my mother. It is a sim with big yellow chip. I tried another one with big chip but it did not work. I lended it to my mother and used the 4.

    I think Iam lucky because my nearly 1000$ phone can make call with a sim. Many others cannot do it.

    Apple should do sth more agrressive. I could not see any value from it since Steve went away.

  • by IRock_,

    IRock_ IRock_ Jan 3, 2012 8:34 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Jan 3, 2012 8:34 AM in response to Stuart Mchattie

    9 out of 10 morning, I get up to SIM card Error message. This is my 2nd iPhone 4S. I am not happy. Not happy at all.

  • by 8Honza,

    8Honza 8Honza Jan 3, 2012 2:22 PM in response to IRock_
    Level 1 (0 points)
    Jan 3, 2012 2:22 PM in response to IRock_

    So you have already had your iPhone exchanged? Dont tell me that it didnt help!

    I m currently having my iPhone 4S in the servise and I m hoping that will solve the issue! Otherwise, i m gonna be pretty fed up...

  • by nightypsy,

    nightypsy nightypsy Jan 3, 2012 2:55 PM in response to Stuart Mchattie
    Level 1 (0 points)
    Jan 3, 2012 2:55 PM in response to Stuart Mchattie

    Always no solution my iphone 4s became in ipod now , got error about 6 time a day ,i buy this for about 740 euro and always no solution , we must do some thin guys !!! apple must fix this .... all was fine for me with 5.0 i did apple update 5.0.1 and from this date i am out out out !!! apple take action !!!!!! lets every one talk about this in tweeter facebook and all blogs , so no one will loose his money .........

  • by tarasfrommiami,

    tarasfrommiami tarasfrommiami Jan 3, 2012 11:46 PM in response to nightypsy
    Level 1 (4 points)
    iCloud
    Jan 3, 2012 11:46 PM in response to nightypsy

    same problem Ukraine (5.0.1 9A406).

  • by ilyinp,

    ilyinp ilyinp Jan 5, 2012 9:02 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Jan 5, 2012 9:02 AM in response to Stuart Mchattie

    Hello!

     

    Also have this problem. IPHone 4S, 32 gb, 5.0.1 with newest patch. Look forward when Apple publish the new patch.

  • by kruelspell,

    kruelspell kruelspell Jan 6, 2012 8:23 AM in response to Stuart Mchattie
    Level 1 (0 points)
    Jan 6, 2012 8:23 AM in response to Stuart Mchattie

    Mine had 3g connectivity issues for three months now. Tried 5.0.1 and latest build of 5.0.1

    and it got worse. Now I'm experiencing complete network dropping from

    my carrier. A popup shows the connection being lost. It's happening now

    5 to 10 times a day at least. Very frustrating losing signal randomly. I'm waiting

    next update to see if problems are solver if not i will ask for a replacement at my local Apple Store.

  • by ratik,

    ratik ratik Jan 6, 2012 8:26 AM in response to Venkat B
    Level 1 (0 points)
    Jan 6, 2012 8:26 AM in response to Venkat B

    hi Venkat

    Hoping you could help me out a little here.

    I am from India too and on Airtel as well

    Currently using the Mini-cut Out Sim, the first pic that youve attached and having a lot of problems.

    Just wanted to tknow how did you get Airtel to give you the Sim shown in the third pic that works and also as in what did you have to say to them?

    Also is it still working well?

    Thanks for the help

    Appreciate it

    Ratik

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